the endianness is actually really important here

eive_tmtc/tmtc/test.py

@@ -1,10 +1,15 @@
-from spacepackets.ecss import PusTelecommand, PusService
+import struct
+import datetime
+import math
+
+from spacepackets.ecss import PusService, PusTelecommand
 from tmtccmd.config import CoreServiceList
 from tmtccmd.config.tmtc import (
-    tmtc_definitions_provider,
-    TmtcDefinitionWrapper,
     OpCodeEntry,
+    TmtcDefinitionWrapper,
+    tmtc_definitions_provider,
 )
+from tmtccmd.pus.s11_tc_sched import create_time_tagged_cmd
 from tmtccmd.pus.s17_test import create_service_17_ping_command
 from tmtccmd.tmtc import service_provider
 from tmtccmd.tmtc.decorator import ServiceProviderParams
@@ -14,12 +19,14 @@ class OpCodes:
     PING = "ping"
     TRIGGER_EVENT = "trig_event"
     PING_WITH_DATA = "ping_with_data"
+    SCHEDULE_PING = "sched_ping"
 
 
 class Info:
     PING = "Simple Ping and Connection Test"
     TRIGGER_EVENT = "Trigger an event"
     PING_WITH_DATA = "Ping with data. Size of sent data is sent back"
+    SCHEDULE_PING = "Schedule a ping"
 
 
 @tmtc_definitions_provider
@@ -28,6 +35,7 @@ def add_test_defs(defs: TmtcDefinitionWrapper):
     oce.add(keys=OpCodes.PING, info=Info.PING)
     oce.add(keys=OpCodes.TRIGGER_EVENT, info=Info.TRIGGER_EVENT)
     oce.add(keys=OpCodes.PING_WITH_DATA, info=Info.PING_WITH_DATA)
+    oce.add(keys=OpCodes.SCHEDULE_PING, info=Info.SCHEDULE_PING)
 
     defs.add_service(
         name=CoreServiceList.SERVICE_17_ALT,
@@ -46,6 +54,21 @@ def pack_test_command(p: ServiceProviderParams):
     if info.op_code == OpCodes.TRIGGER_EVENT:
         q.add_log_cmd("Sending PUS TC Event Trigger [17, 128]")
         q.add_pus_tc(PusTelecommand(service=PusService.S17_TEST, subservice=128))
+    if info.op_code == OpCodes.SCHEDULE_PING:
+        q.add_log_cmd("Sending scheduled PUS ping")
+        # Generate a UNIX timestamp 30 seconds in the future using the datetime API with a UTC timezone
+        now = datetime.datetime.now(tz=datetime.timezone.utc)
+        second_offset_to_now = input("Please specify offset to now in seconds: ")
+        now += datetime.timedelta(seconds=int(second_offset_to_now))
+        unix_stamp = struct.pack("!I", math.floor(now.timestamp()))
+        print(f"Sending ping scheuled at {now}")
+        ping = PusTelecommand(service=PusService.S17_TEST, subservice=128)
+        q.add_pus_tc(
+            create_time_tagged_cmd(
+                release_time=unix_stamp,
+                tc_to_insert=ping,
+            )
+        )
     if info.op_code == OpCodes.PING_WITH_DATA:
         q.add_log_cmd("Sending Ping With Data, Size Reported Back [17, 129]")
         while True: